1.The computer store at MC has 6-feet for 7.99 which is the cheapest I know.
2.At the cross of University Ave and King(besides a pizza shop), there's a photocopy shop. It's 5c per page(I don't know including or excluding tax). At UW, 7c for one page, 8c per page for more than 2 pages.
3.Wilfred Laurier University has a bookstoer who sells used book too. But it's difficult to find books used in UW except some Calculus books.
Do you want to copy book?